[DeTomaso] Pedal Casting?
Julian Kift
julian_kift at hotmail.com
Sun Apr 2 16:40:57 EDT 2017
When I replaced the pedal assembly in my first GT40, Tilton had an online submission form for master cylinder sizing, input all the basic on the vehicle and brakes and they would come back with a recommendation. I cannot see that option on their website currently, so maybe the lawyers got hold of them, but worth contacting Tech Support to see if they still offer such a service.
I used Tilton's advise as more of a verification for the attached spreadsheet to help me size dual masters, it is by no means exhaustive but may serve as something you can build upon. I set it up all metric, but just added Imperial calculations for the die-hards and Americans!
Julian
________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of Ken Green via DeTomaso <detomaso at server.detomasolist.com>
Sent: Saturday, April 1, 2017 10:22 PM
To: mark skwarek; L GRAY; Dave Londry
Cc: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Pedal Casting?
Mark,
I think the MC size depends on the caliper pistons.
Ken
From: mark skwarek via DeTomaso <detomaso at server.detomasolist.com>
To: Ken Green <kenn_green at yahoo.com>; L GRAY <tipo874a at msn.com>; Dave Londry <davel at emspace.com>
Cc: "detomaso at server.detomasolist.com" <detomaso at server.detomasolist.com>
Sent: Saturday, April 1, 2017 8:13 PM
Subject: Re: [DeTomaso] Pedal Casting?
Ken,
I'll send you the What I am using for master cylinder sizes. I talked
to the guys a Tilton and they were very helpful.
Mark
On Saturday, April 1, 2017 10:34 PM, Ken Green <kenn_green at yahoo.com>
wrote:
I know about the pedal ratios, I didn't want to dent the wall of the
front trunk to make room for clutch MC.
Also, the ratio of MC bores to caliper piston areas is part of the
equation. It looks like 0.75 MCs and the fairly large Porsche 996
Turbo caliper pistons I am using come out about right.
Ken
__________________________________________________________________
From: mark skwarek <ehpantera at yahoo.com>
To: Ken Green <kenn_green at yahoo.com>; L GRAY <tipo874a at msn.com>; Dave
Londry <davel at emspace.com>
Cc: "detomaso at server.detomasolist.com"
<detomaso at server.detomasolist.com>
Sent: Saturday, April 1, 2017 12:10 PM
Subject: Re: [DeTomaso] Pedal Casting?
If you are converting the stock pedal assembly to non vacuum assisted,
the pedal effort will increase. Willwood manual pedal assy. is 6:1 and
power brakes are between 5:1 and 4:1.
Mark
On Thursday, March 30, 2017 6:33 PM, Ken Green via DeTomaso
<detomaso at server.detomasolist.com> wrote:
Hi Les,
Any idea what you would want for the pedal assembly casting?
I used a Tilton 7/16 balance bar on the prototype, and it placed
the MC shafts where some of the webbing is on the pedal side, so I
had
to cut into the webbing. I found a 1/2 inch Tilton balance bar and
it
is wider, so I can avoid the webbing. I did basically the same as
Goran did before me (see attachment). I like this a lot better than
something that is in front of the casting, I think Dennis Quela has
something like that.
So you are back in California?
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
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-------------- next part --------------
When I replaced the pedal assembly in my first GT40, Tilton had an
online submission form for master cylinder sizing, input all the basic
on the vehicle and brakes and they would come back with a
recommendation. I cannot see that option on their website currently, so
maybe the lawyers got hold of them, but worth contacting Tech Support
to see if they still offer such a service.
I used Tilton's advise as more of a verification for the attached
spreadsheet to help me size dual masters, it is by no means exhaustive
but may serve as something you can build upon. I set it up all metric,
but just added Imperial calculations for the die-hards and Americans!
Julian
__________________________________________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of
Ken Green via DeTomaso <detomaso at server.detomasolist.com>
Sent: Saturday, April 1, 2017 10:22 PM
To: mark skwarek; L GRAY; Dave Londry
Cc: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Pedal Casting?
Mark,
I think the MC size depends on the caliper pistons.
Ken
From: mark skwarek via DeTomaso
<detomaso at server.detomasolist.com>
To: Ken Green <kenn_green at yahoo.com>; L GRAY <tipo874a at msn.com>; Dave
Londry <davel at emspace.com>
Cc: "detomaso at server.detomasolist.com"
<detomaso at server.detomasolist.com>
Sent: Saturday, April 1, 2017 8:13 PM
Subject: Re: [DeTomaso] Pedal Casting?
Ken,
I'll send you the What I am using for master cylinder sizes. I talked
to the guys a Tilton and they were very helpful.
Mark
On Saturday, April 1, 2017 10:34 PM, Ken Green <kenn_green at yahoo.com>
wrote:
I know about the pedal ratios, I didn't want to dent the wall of the
front trunk to make room for clutch MC.
Also, the ratio of MC bores to caliper piston areas is part of the
equation. It looks like 0.75 MCs and the fairly large Porsche 996
Turbo caliper pistons I am using come out about right.
Ken
__________________________________________________________________
From: mark skwarek <ehpantera at yahoo.com>
To: Ken Green <kenn_green at yahoo.com>; L GRAY <tipo874a at msn.com>; Dave
Londry <davel at emspace.com>
Cc: "detomaso at server.detomasolist.com"
<detomaso at server.detomasolist.com>
Sent: Saturday, April 1, 2017 12:10 PM
Subject: Re: [DeTomaso] Pedal Casting?
If you are converting the stock pedal assembly to non vacuum
assisted,
the pedal effort will increase. Willwood manual pedal assy. is 6:1
and
power brakes are between 5:1 and 4:1.
Mark
On Thursday, March 30, 2017 6:33 PM, Ken Green via DeTomaso
<detomaso at server.detomasolist.com> wrote:
Hi Les,
Any idea what you would want for the pedal assembly casting?
I used a Tilton 7/16 balance bar on the prototype, and it
placed
the MC shafts where some of the webbing is on the pedal side, so I
had
to cut into the webbing. I found a 1/2 inch Tilton balance bar and
it
is wider, so I can avoid the webbing. I did basically the same as
Goran did before me (see attachment). I like this a lot better
than
something that is in front of the casting, I think Dennis Quela has
something like that.
So you are back in California?
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
Inline image
__________________________________________________________________
_______________________________________________
Detomaso Email List is not managed by POCA
Posted emails must not exceed 1.5 Megabytes
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[2]http://server.detomasolist.com/mailman/listinfo/detomaso
To manage your subscription (change email address, unsubscribe, etc.)
use the links above.
Members who post to this list grant license to the list to forward
any
message posted here to all past, current, or future members of the
list. They also grant the list owner permission to maintain an
archive
or approve the archiving of list messages.
References
1. [1]mailto:DeTomaso at server.detomasolist.com
2. [2]http://server.detomasolist.com/mailman/listinfo/detomaso
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To manage your subscription (change email address, unsubscribe, etc.)
use the links above.
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list. They also grant the list owner permission to maintain an archive
or approve the archiving of list messages.
References
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